Senior Mechanical Engineer ASME Lead

Averro; Bellevue (WA); On-site; USD 140,000 - 190,000; Full time

Benefits offered by this job

Medical insurance

Dental insurance

Vision insurance

401k

Sick leave

Employee assistance program

PTO

Paid holidays

Legal insurance

Job summary

Averro seeks a Senior Mechanical Engineer – ASME Lead for a leading advanced nuclear reactor program in Bellevue, WA. You will perform detailed design, analysis, and documentation for ASME Section III Class HB pressure boundary components, including vessels, piping, valves, and heat exchangers.

The role requires PE license, 8+ years of experience, and strong proficiency in ANSYS FEA, plus ability to interface with regulatory bodies and support design reviews and code certification processes.

Qualifications

• B.S. in Mechanical Engineering, with 8+ years of equipment/ component design experience (M.S. credited as 2 years).
• Active Professional Engineer (PE) license required.
• Hands-on experience with ASME Boiler and Pressure Vessel Code Section III, including certifying Design Specifications and Design Reports for nuclear pressure-retaining components.
• Deep understanding of ASME Section III, NQA-1, and related NRC regulations.
• Proficiency in finite element stress analysis and commercial mechanical stress analysis tools, with emphasis on ANSYS.
• Strong written and verbal communication skills with a high degree of integrity and collaborative work ethic.

Responsibilities

• Perform detailed design, analysis, and documentation for ASME Section III Class HB pressure boundary components, including vessels, piping, valves, heat exchangers, and associated subcomponents.
• Prepare design specifications, design reports, stress analyses, and code compliance calculations in accordance with ASME Section III rules and applicable NRC guidance.
• Conduct pressure boundary evaluations covering fatigue, thermal, seismic, and time-dependent material behavior.
• Collaborate with multidisciplinary engineering teams to define design requirements, resolve technical issues, and optimize component performance.
• Interface with quality teams, third-party reviewers, and regulatory bodies to support audits, design reviews, and code certification processes.
• Support fabrication drawings, weld requirements, inspection criteria, material selection, and acceptance standards for pressure boundary components.
• Provide technical mentorship to junior engineers and maintain current knowledge of ASME Section III revisions and NRC guidance.

Skills

ANSYS

Finite Element Analysis

Nuclear design

Regulatory compliance

Collaboration

Education

B.S. in Mechanical Engineering

Professional Engineer (PE) license

Tools

ANSYS

CAD software (e.g., Creo/ProE)

Job description

Benefits

Medical, Dental, and Vision insurance, 401k, sick leave, and employee assistance program. Depending on your package selection, Averro offers PTO, paid holidays, and legal insurance.

ROLE & RESPONSIBILITIES

We are seeking a Senior Mechanical Engineer – ASME Lead for a leading advanced nuclear reactor development program, which would be a great opportunity for someone with experience in ASME Section III nuclear design and pressure boundary component engineering looking to further their career in next-generation reactor technology.

• Perform detailed design, analysis, and documentation for ASME Section III Class HB pressure boundary components, including vessels, piping, valves, heat exchangers, and associated subcomponents.
• Prepare design specifications, design reports, stress analyses, and code compliance calculations in accordance with ASME Section III rules and applicable NRC guidance.
• Conduct pressure boundary evaluations covering fatigue, thermal, seismic, and time-dependent material behavior.
• Collaborate with multidisciplinary engineering teams to define design requirements, resolve technical issues, and optimize component performance.
• Interface with quality teams, third-party reviewers, and regulatory bodies to support audits, design reviews, and code certification processes.
• Support fabrication drawings, weld requirements, inspection criteria, material selection, and acceptance standards for pressure boundary components.
• Provide technical mentorship to junior engineers and maintain current knowledge of ASME Section III revisions and NRC guidance.

ESSENTIAL QUALIFICATIONS

• B.S. in Mechanical Engineering or equivalent; minimum 8 years of equipment/component design experience (relevant M.S. credited as 2 years).
• Active Professional Engineer (P.E.) license required.
• Hands-on experience with ASME Boiler and Pressure Vessel Code Section III, including certifying Design Specifications and Design Reports for nuclear pressure-retaining components.
• Deep understanding of ASME Section III, NQA-1, and related NRC regulations.
• Proficiency in finite element stress analysis and commercial mechanical stress analysis tools, with emphasis on ANSYS.
• Strong written and verbal communication skills with a high degree of integrity and collaborative work ethic.

BONUS QUALIFICATIONS

• Experience with Natrium Generation IV or other advanced reactor programs.
• Background in regulated nuclear fabrication, inspection, or nonconformance evaluation processes.
• Familiarity with ANSI/ANS 3.1 qualification requirements and nuclear licensing deliverables.

WHY AVERRO?

We live by our ethos: Be Curious | Build Trust | Empower Each Other. These values show in our commitment to client satisfaction, timely support, and unmatched consultant care. Our Aim – Your Ascent. Averro is an equal opportunity employer, and we are committed to diversity, equity, and inclusion in the workplace. All qualified applicants will receive consideration for employment, regardless of criminal histories, consistent with legal obligations. All employment decisions shall be made without regard to age, race, creed, color, religion, sex, national origin, ancestry, disability status, veteran status, sexual orientation, gender identity or expression, genetic information, marital status, citizenship status or any other basis as protected by federal, state, or local law. View our privacy policy here: https://www.averro.com/legal/privacy-policy